SuperSteer SS400 Rear Trac Bar compatible with Ford F53 V10 16-19.5K GVWR up to model year 2020. Fits Bolt on Differential-Cover. WARNING!! DO NOT USE GCWR!! Check your VIN tag PRIOR to placing your order to verify weight. SuperSteer Trac Bars reduce rear axle side-to-side play, which translates into predictable handling and precise steering. Easily installed with no drilling or welding required!